Doors are typically hinged or sliding barriers used to open and close an entrance or exit to a room or building. They are made of various materials such as wood, metal, or glass and can range in design from simple to ornate. Doors serve as a means of privacy, security, and protection from the elements. They come in many different sizes and styles to suit various architectural and aesthetic preferences. Overall, doors play a crucial role in our daily lives by providing access, safety, and division of space.